Android-SmoothSeekBar

An abstraction of Android's SeekBar that animates smoothly.

Compatible with Android 4.0+

The latest SNAPSHOT can be found here - I'm working on getting it properly uploaded to MavenCentral.

Importing Using Android Studio and Gradle

Using Gradle is the easiest way to incorporate this into your project. Add the following lines inside your build.gradle after importing the as a module:

dependencies {
    compile project(':library')
}

XML Attributes

Make sure to add xmlns:custom="http://schemas.android.com/apk/res-auto" to the root view of any layout where you use the SmoothSeekBar. You can then set the background and fill colors in XML like so:

custom:progressBackgroundColor="@color/bg_color"
custom:progressFillColor="@color/fill_color"

Implementation

As shown in the sample application, the following steps will be necessary for proper functionality:

• setOnSeekBarChangeListener(listener) needs to be implemented
• call setEndTime(int) to give the seekbar the length of playback
• call beginAnimating() to start the animation
• call pauseAnimating() to pause the animation
• call endAnimation() to end the animation

SeekBar.OnSeekBarChangeListener Method Overrides

You'll need to override the following methods to use the SmoothSeekBar. Mine generally look something like this:

@Override
	public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
		if (fromUser) {
			seekBar.setProgress(progress);
		}
	}

	@Override
	public void onStartTrackingTouch(SeekBar seekBar) {
		mPlayer.pause();
		mSeekBar.pauseAnimating();
	}

	@Override
	public void onStopTrackingTouch(SeekBar seekBar) {
		mPlayer.seekTo(getSeekToProgress());
		mPlayer.start();
		mSeekBar.beginAnimating();
	}

where getSeekToProgress() calculates where the MediaPlayer should seek to and returns its value as an int:

	private int getSeekToProgress() {
		return (int) ((double) mSeekBar.getProgress() * (1 / (double) mSeekBar.getMax()) * (double) mPlayer.getDuration());
	}

Disclaimer

This readme is a work in progress and will be updated accordingly. For now, view the samples for a better understanding of how to implement this into your project.